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Search Results for enthalpy - All Grades

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Grade 12 Thermodynamics
Grade 12 Thermodynamics
According to second law of thermodynamics, heat energy cannot be completely converted into useful work owing to                                       .
  1. the entropy of the system
  2. the enthalpy of the system
  3. the internal energy of the system
  4. the translational energy of the system
Grade 12 Physics
Grade 11 Reactions
Consider the following endothermic reaction:
N2(g)+O2(g)2NO(g)
ΔH=+180kJmol

Which statement correctly defines this endothermic reaction?
  1. Product is less stable than the reactants
  2. Heat is evolved in this reaction
  3. Reaction proceeds spontaneously in the forward direction
  4. Enthalpy of products is less than those of reactants